| Data pengamatan Epoch J2000.0 Equinox J2000.0 (ICRS) | ||
| Rasi bintang | Cepheus | |
| Komponen | A | B |
| Asensio rekta | 23j 18m | 23j 18m |
| 37.493s | 37.115s | |
| Deklinasi | +68° 06′[1] | +68° 06′[2] |
| 41.20″ | 38.65″ | |
| Magnitudo semu (V) | 4.86[3] | 7.13[3] |
| Karakteristik | ||
| Klasifikasi bintang | G8III[4] | F6V[3] |
| U-B Indeks warna | +0.49[3] | |
| B-V Indeks warna | +0.84[3] | |
| R-I Indeks warna | +0.45[3] | |
| Astrometri | ||
| Gerak diri: | ||
| RA (μα cos δ) | 54.88[1] m.b/thn | 45.70[2] m.b/thn |
| Dec. (μδ) | 10.91[1] m.b/thn | 13.19[2] m.b/thn |
| Paralaks (π) | 15.48 ± 0.55[5] m.b | |
| Jarak | 211 ± 7 tc (65 ± 2 pc) | |
| Magnitudo mutlak (MV) | 0.8[note 1] | 3.1[note 1] |
| Details | ||
| Massa | 2.35 ± 0.15[4] M☉ | 1.29[4] M☉ |
| Orbit[4] | ||
| Periode (P) | 1505 ± 40 y | |
| Sumbu semi-mayor (a) | 3.13 ± 0.12″ | |
| Eksentrisitas (e) | 0.439 ± 0.020 | |
| Inklinasi (i) | 16.0 ± 4.0° | |
| Bujur node menaik (Ω) | 4.5 ± 4.5° | |
| Periastron epos (T) | B1692 ± 20 | |
| Argumen periastron (ω) (secondary) | 93.0 ± 20.0° | |
| Referensi Database | ||
| SIMBAD | data | |
| Nama lain | ||
Omicron Cephei (Omicron Cep, ο Cephei, ο Cep) adalah bintang biner yang terletak di rasi bintang Cepheus.[5] Terdiri dari bintang dengan klasifikasi tipe K (bintang berukuran kecil) pada orbit dengan bintang raksasa (tipe G).[4] [[Magnitudo semunya secara umum 4.75.[3]
Catatan
suntingReferensi
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- ^ a b c Component 1, HIP 115088, database entry, The Hipparcos and Tycho Catalogues, 1997, CDS ID I/239.
- ^ a b c Component 2, HIP 115088, database entry, The Hipparcos and Tycho Catalogues, 1997, CDS ID I/239.
- ^ a b c d e f g HR 8872, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line November 24, 2008.
- ^ a b c d e Orbit and System Mass for the Visual Binary WDS 23186+6807AB, José A. Docobo, Vakhtang S. Tamazian, Manuel Andrade, and Norik D. Melikian, Astronomical Journal 126, #3 (September 2003), pp. 1522–1525, Bibcode: 2003AJ....126.1522D, DOI:10.1086/377319.
- ^ a b c CCDM J23186+6807AB -- Double or multiple star, database entry, SIMBAD. Accessed on line November 24, 2008.
- ^ Entry 23186+6807, The Washington Double Star Catalog Diarsipkan 2009-01-31 di Wayback Machine., United States Naval Observatory. Accessed on line November 24, 2008.
